diff --git a/rules-tests/PSR4/Rector/FileWithoutNamespace/NormalizeNamespaceByPSR4ComposerAutoloadRector/Fixture/skip_inline_html.php.inc b/rules-tests/PSR4/Rector/FileWithoutNamespace/NormalizeNamespaceByPSR4ComposerAutoloadRector/Fixture/skip_inline_html.php.inc
new file mode 100644
index 00000000000..50ebb59f064
--- /dev/null
+++ b/rules-tests/PSR4/Rector/FileWithoutNamespace/NormalizeNamespaceByPSR4ComposerAutoloadRector/Fixture/skip_inline_html.php.inc
@@ -0,0 +1 @@
+<h1> {{ content }} </h1>
diff --git a/rules/PSR4/Rector/FileWithoutNamespace/NormalizeNamespaceByPSR4ComposerAutoloadRector.php b/rules/PSR4/Rector/FileWithoutNamespace/NormalizeNamespaceByPSR4ComposerAutoloadRector.php
index 100f497b3cc..4892eff03ed 100644
--- a/rules/PSR4/Rector/FileWithoutNamespace/NormalizeNamespaceByPSR4ComposerAutoloadRector.php
+++ b/rules/PSR4/Rector/FileWithoutNamespace/NormalizeNamespaceByPSR4ComposerAutoloadRector.php
@@ -7,6 +7,7 @@
 use PhpParser\Node;
 use PhpParser\Node\Name;
 use PhpParser\Node\Stmt\Declare_;
+use PhpParser\Node\Stmt\InlineHTML;
 use PhpParser\Node\Stmt\Namespace_;
 use Rector\Core\PhpParser\Node\CustomNode\FileWithoutNamespace;
 use Rector\Core\Rector\AbstractRector;
@@ -80,6 +81,10 @@ public function getNodeTypes(): array
      */
     public function refactor(Node $node): ?Node
     {
+        if ($this->shouldSkip($node)) {
+            return null;
+        }
+
         $expectedNamespace = $this->psr4AutoloadNamespaceMatcher->getExpectedNamespace($this->file, $node);
         if ($expectedNamespace === null) {
             return null;
@@ -101,6 +106,11 @@ public function refactor(Node $node): ?Node
         return $node;
     }
 
+    private function shouldSkip(Node $node): bool
+    {
+        return (bool) $this->betterNodeFinder->findFirstInstanceOf($node, InlineHTML::class);
+    }
+
     private function refactorFileWithoutNamespace(
         FileWithoutNamespace $fileWithoutNamespace,
         string $expectedNamespace